18661617

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{673}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 30195200

約数和(自身を除く): 11533583

約数列:

[1, 3, 9, 13, 27, 39, 79, 117, 237, 351, 673, 711, 1027, 2019, 2133, 3081, 6057, 8749, 9243, 18171, 26247, 27729, 53167, 78741, 159501, 236223, 478503, 691171, 1435509, 2073513, 6220539, 18661617]

約数ペア:

[(1, 18661617), (3, 6220539), (9, 2073513), (13, 1435509), (27, 691171), (39, 478503), (79, 236223), (117, 159501), (237, 78741), (351, 53167), (673, 27729), (711, 26247), (1027, 18171), (2019, 9243), (2133, 8749), (3081, 6057)]